Here the notation \(\overline{\lambda }\)  refers to \((\lambda _1,\, \dots ,\, \lambda _{r+1})\)  and the notation \(\overline{k}\)  refers to \((k_1,\, \dots ,\, k_{2g})\)  as in (REF ) above. For the special case \(G\,=\,\mathrm {SU}(2)\) , see also [1]}.
